diff --git a/src/state-summary/state-card-cover.html b/src/state-summary/state-card-cover.html
index 9a90c9f156..dc0e4886e3 100644
--- a/src/state-summary/state-card-cover.html
+++ b/src/state-summary/state-card-cover.html
@@ -54,11 +54,17 @@ Polymer({
   },
 
   computeIsFullyOpen: function (stateObj) {
-    return stateObj.attributes.current_position === 100;
+    if (stateObj.attributes.current_position !== undefined) {
+      return stateObj.attributes.current_position === 100;
+    }
+    return stateObj.state === 'open';
   },
 
   computeIsFullyClosed: function (stateObj) {
-    return stateObj.attributes.current_position === 0;
+    if (stateObj.attributes.current_position !== undefined) {
+      return stateObj.attributes.current_position === 0;
+    }
+    return stateObj.state === 'closed';
   },
 
   onOpenTap: function () {